CN109417137A - Connecting element and battery case and its manufacturing method for battery case - Google Patents
Connecting element and battery case and its manufacturing method for battery case Download PDFInfo
- Publication number
- CN109417137A CN109417137A CN201780039237.2A CN201780039237A CN109417137A CN 109417137 A CN109417137 A CN 109417137A CN 201780039237 A CN201780039237 A CN 201780039237A CN 109417137 A CN109417137 A CN 109417137A
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- China
- Prior art keywords
- connecting element
- battery case
- bottom sheets
- plate
- battery
- Prior art date
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- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000003466 welding Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000000641 cold extrusion Methods 0.000 claims description 2
- 238000005495 investment casting Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 24
- 239000000178 monomer Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/005—Nuts or like thread-engaging members into which threads are cut during screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/02—Nuts or like thread-engaging members made of thin sheet material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention relates to a kind of connecting elements (1) for the battery cell (15) of electric vehicle (16) to be connect with battery case (10), wherein, the connecting element (1) on the one hand has at least one jointing (5) to connect with the battery cell (15), is on the other hand joined on the battery case (10).The task that the present invention is based on is: at least can largely eliminate the need for additional materials when by connecting element engagement on the battery case, and better quality and the economically engagement connection between the bottom sheets of configuration battery case.The task is solved by connecting element (1), which has at least one junction section (2), for being fixedly connected with the battery case (10).
Description
Technical field
The present invention relates to a kind of connecting element of preamble and battery case according to claim 1 and for manufacturing electricity
The manufacturing method of pond case.
Background technique
It is used as the unit of electricity accumulator in electric vehicle, below referred to as battery, is usually drawn in modular construction
It is divided into each independent monomer, below referred to as battery cell.For example, this battery cell can be by chargeable secondary single
Body is constituted, which is commonly referred to as battery.Each monomer of electricity accumulator is electrically connected to each other into so-called battery, the electricity
Pond has the working voltage and energy capacity of setting.
For producing in enormous quantities, so-called battery case is set, and receiving in the battery case has each battery cell.Each list
A battery cell and battery case is mechanically connected, to prevent sliding at runtime.On the one hand battery case is used as modular construction
Group, the modular construction group simplify the batch production of vehicle.On the other hand, battery case protection battery cell exempt from it is affected by environment with
And the mechanism from being for example likely to occur in the event of an accident and caused by damage.
Battery cell in battery case can for example be tightened with the battery case.For this purpose, connecting element can be with battery case
Furthermore bottom sheets connection, the connecting element are also referred to as be spirally connected node, spiro junction, screw dome connector or screw-jointing seat.
Then each battery cell is tightened with connecting element.Connecting element can be located between the separation plate of battery register, the electricity
Each battery cell is spatially separated from each other by pond register, and can contribute to the mechanical stability of battery case.
Connecting element can have jointing, is provided in the jointing for being mechanically connected, such as screw thread connects
The hole connect.In order to ensure sufficient space and stability for mechanical connection, such as enough flights, the connection
Element has the biggish height compared with the plate thickness of the bottom sheets of battery case at least in the region of jointing.
The bottom sheets of battery case are also used on its underside sealing battery case.Bottom sheets are implemented normally closedly,
And aforementioned connecting element is engaged on the inside of bottom sheets.
Thus it is contemplated that using additional materials and by fillet weld by connecting element in its bonding pad
It is welded in the region of section with the bottom sheets of battery case.In addition to unfavorable big manufacture is spent, it is also shown that bottom sheets due to
The degree fusing that heat input when welding can distort and can not allow locally.Be configured to compared with bottom sheets compared with
Big jointing, that is, more demanding heat input is used to melt, and the heat input can cause bottom sheets prematurely to melt simultaneously
Change, and so as to cause aforesaid drawbacks.
2 768 045 A1 of EP illustrates that a kind of cell apparatus for vehicle, the vehicle have battery module, the electricity
Pond module is made of multiple battery cells.Battery module is arranged on the upside of the carrier of battery case.Lid is set as, and is used for
Cover battery module.
It is a kind of for the cell apparatus of electricity operation vehicle and for manufacturing in this way as known to 10 2,015 111 749 A1 of DE
Cell apparatus method.The cell apparatus includes multiple battery modules with battery cell.For receiving battery module
Reception device include the bottom plate for being arranged in the cavity wall below battery module He being arranged in below the cavity wall.
Summary of the invention
From disadvantage illustrated before, the task that the present invention is based on is, at least largely in engagement
On with can eliminating the need for additional materials and better quality and the economically engagement between the bottom sheets of configuration battery case
Connection.
The task is solved by connecting element according to claim 1.
Connecting element according to the present invention also has the junction section for being fixedly connected with battery case in addition to jointing.
In this way, on the one hand the connecting element can be optimized for constructing the mechanical connection with battery cell；On the other hand,
It can be designed for being fixedly connected at junction section with battery case, to meet different requirements herein.
The design that the present invention is based on is: being for example threadedly coupled to construct, needs biggish jointing, the bonding pad
Section is able to bear the power from threaded connection, and in addition, should also provide certain flight for bolt.For engagement side
The junction section of method design is set as, for being fixedly connected with battery case.Joint method is primarily referred to as causing heat input to waiting
Method in the component of conjunction, such as weld.By the way that junction section is arranged the thermal capacity of junction section can for example locally fitted
The thermal capacity of section to be joined assigned in bottom sheets, it is possible thereby to avoid or at least reduce by two components to be joined
The fever not allowed at position.
It can be set in an advantageous embodiment, junction section is adjacently constructed with jointing.With this side
Formula, connecting element can particularly compact and mechanically stable ground configurations.In addition, this also simplifies the manufacturabilitys of connecting element.
Can be set in other Advantageous embodiments, junction section be configured to plate shape, in the outer of connecting element
The piece at least extended to section on profile.Described can be implemented with a kind of type of web.By the way that junction section is configured to plate
The piece of material shape realizes the similar mechanical relation between bottom sheets and junction section, thus obviously simplifies joint method.This
Outside, the piece extended on the outer profile of connecting element additionally aids compact configuration, because can enter junction section, institute well
It states piece and additionally aids simplified engagement.If the piece of plate shape is only arranged on outer profile to section, for needed for junction section
Material can be restricted at least because can be eliminated the need in principle in vehicle manufacture unwanted and therefore expensive and again
Material.If the piece of plate shape is implemented in this wise, so that it is constructed on the entire outer profile of connecting element, then this is made it possible to
Enough realize connecting element being widely used in the battery case of various configuration.In addition, simplifying manufacturability.
In one preferred embodiment, jointing can have 0.75mm to 1.75mm, preferably 1mm to 1.5mm,
The especially thickness of 1.5mm.Within the scope of these, it turned out that usually used bottom sheets thickness is adapted to particularly well, it is described
Bottom sheets can have the thickness of about 0.5mm to 1.5mm, preferably 0.5mm to 1mm again.Generally, jointing is in principle
It can design in this wise, so that the thickness of junction section is compared with the plate thickness of bottom sheets with the ratio of about 1:1 to about 1:3
Example.
It preferably can be set, junction section is integrally constructed with jointing.This convenient for connecting element manufacture and
Improve its mechanical stability.
It preferably can be set, connecting element is configured to hot investment casting component, cold extrusion component or plate members.This system
It makes method and has proven to be particularly advantageous and economical for mass production.In addition, junction section can be in a process
In be particularly simply molded into connecting element.
Furthermore it can be set, can also form other characteristics of connecting element simultaneously in a manufacturing process, such as
Internal screw thread in the hole of jointing.
Advantageously, connecting element can be made of the metal that can be welded or the alloy that can be welded, especially by steel or aluminium conjunction
Gold is constituted.These materials can be not only processed well with preferred process variant or forming method with manufacture connection member
Part, and can be processed when being joined on bottom sheets.In addition, especially steel and aluminium have the height for constructing mechanical connection
Mechanical strength.
In addition, the task is for battery case electric vehicle, according to claim 8 also by solving, the battery
The connecting element according to the present invention that case has bottom sheets and is bonded on the bottom sheets.
Advantageously, it furthermore can be set, there is battery case at least one to separate plate, for by the first battery cell and the
Two battery cells separate.Separate on the one hand battery case can be improved in plate mechanical stability.Additionally or alternatively, this point
Thus partition material for example protects battery cell from phase in case of a failure for spatially separating each battery cell
The negative effect of adjacent battery cell.
Furthermore it can be set, connecting element is in the region of junction section preferably by welding, particularly by laser welding
It is joined on bottom sheets.Connecting element, preferably by the engagement of welding, makes it possible to the company of realization in the region of junction section
Connect especially economic, the quick and reliable connection of element and bottom sheets.It is used to arrive junction section engagement using welding method
On bottom sheets, make it possible to realize especially economic and quickly manufacture.In particular, laser welding has proven to be advantageous, because
Herein without the Mechanical Contact between welding electrode and component, and therefore, the cost energy for clamping device and relevant device
It is enough kept as low.
Preferably, furthermore can be set, at least one separate plate have at least one companion flange, the companion flange with
Mode identical with connecting element is connect with bottom sheets.This enables for connecting element and separates plate using identical
Joint method, thus generally can manufacture that is simpler and more advantageously executing battery case.In addition, by introducing connection member
Part and separation plate, battery case can more accurately be manufactured with size, because before component is finally joined on bottom sheets,
It is described at least one separate plate and at least one described connecting element can first relative to each other and relative to bottom sheets with
And it is felt relieved and has been aligned relative to remaining component when necessary.
It particularly preferably can be set, the plate thickness of bottom sheets and the thickness of at least one junction section have about 1:1
To the ratio of about 1:3.The especially small deformation of bottom sheets can be expected in the range.
Preferably, bottom sheets have in 0.5mm to the thickness between 1mm.It in the range can be relative to bottom plate
The mechanical strength for making full use of bottom sheets Weight-optimisedly of material.
In addition, the task also by it is according to claim 14 for manufacture be used for electric vehicle battery case method come
It solves.Accordingly, connecting element is initially disposed on bottom sheets, is then welded with the bottom sheets.In particular, this can be by swashing
Photocoagulation is realized.Preferably, connecting element according to the present invention is used herein, for manufacturing battery case according to the present invention.
In a preferred embodiment of this method, it is arranged on bottom sheets and and bottom plate by connecting element
Between material welding, at least one separation plate can be arranged on bottom sheets, wherein then, plate and connection will be separated
Element one by one and is in an identical manner welded with bottom sheets.This at least allows, first by bottom sheets, at least one separation
Plate and at least one connecting element are spatially arranged and are aligned relative to each other, these components are then transferred to engagement
In device, and there, it will be engaged in they actually a process.
Detailed description of the invention
Other purposes, advantage, feature and application of the invention are obtained by multiple embodiments below with reference to the accompanying drawings
Possibility.Here, feature itself be described and/or diagram or with any significant combination, is also wanted with it in right
In asking or the combination of the Hui Yinzhong of the claim independently constitutes the contents of the present invention.
Here, partly schematically showing:
Fig. 1 shows cross connection element according to the present invention in three-dimensional view,
Fig. 2 shows side connecting element according to the present invention in three-dimensional view,
Fig. 3 shows corner connection elements according to the present invention in three-dimensional view,
Fig. 4 shows the side view of the connecting element in side connecting element or cross connection element form,
Fig. 5 shows an alternative embodiment of cross connection element in three-dimensional view,
Fig. 6 shows an alternate embodiments of side connecting element in three-dimensional view,
Fig. 7 shows the three-dimensional view of the part of the battery case with connecting element according to the present invention,
Fig. 8 shows the detailed part of the battery case with connecting element according to the present invention in three-dimensional view,
Fig. 9 shows the detailed view of another solid of the battery case with connecting element according to the present invention,
Figure 10 shows the enlarged view of the part in Fig. 9,
Figure 11 shows the part of the top view of battery case according to the present invention and the signal of battery cell and electric vehicle
Figure.
It is identical according to being equipped in the attached drawing of multiple embodiments shown in identical or phase same-action component is below
Appended drawing reference, to improve readability.
Specific embodiment
Fig. 1 shows the connecting element 1 according to the present invention with junction section 2, the junction section in the form of piece
It is extended around on the jointing 5 of connecting element 1.
The connecting element 1 of present exemplary has in total there are four jointing 5, and the jointing is about connecting element 1
17 staggered form of central section it is opposed.Centering convex block 4, other component energy are provided in the central section 17 of connecting element 1
It is enough to be directed at the centering convex block.
Each jointing 5 has hole, and the hole is embodied as through hole 3 in the current situation.In all embodiments,
The hole can have unshowned internal screw thread, which is used to twist with the battery cell 15 schematically shown in Figure 15
Tightly.Here, internal screw thread can be arranged in connecting element when manufacturing connecting element 1.However, also can be only in connection member
Through hole 3 is set on part 1, tapping screw or tap bolt are then screwed into institute during assembling battery cell 15
It states in through hole, wherein and then internal screw thread is formed at the hole.
Fig. 2 shows connecting element 1 according to the present invention, the connecting element and connecting element shown in Fig. 1 difference exist
In it is the side connecting element 7 only having there are two jointing 5.Herein, centering convex block is also equipped in central section 17
4.The adjacent flat side 20 of the centering convex block, the side stick on the side plate material 12 of battery case 10 in mounted situation or
Person is opposed with side plate material 12.This for example shows in figures 7 and 8.
Fig. 3 shows connecting element 1, which is currently embodied as corner connection elements 6.The corner connection elements 6 have two
A flat side 20, the side in mounted situation in battery case 10 the side plate material 12 of contiguous cells case 10 or with
Side plate material 12 is opposed.This is shown in FIG. 7.
Fig. 4 shows the side of the connecting element 1 according to the present invention as side connecting element 7 or as cross connection element 8
View, from the side view: " web " circular as lateral piece, that constitute junction section 2 is significantly less than with thickness
The thickness of re-spective engagement section 5.
An alternative embodiment for cross connection element 8 is shown in FIG. 5, in the cross connection element,
Junction section 2 only constructs to section on the outer profile of connecting element 1, i.e., between the opposed side of the staggered form of jointing 5.
The structure is particularly compact, and the bottom sheets 9 of connecting element 1 and battery case 10 being located at below the connecting element is allowed to have needle
To property welded in the outer profile of connecting element 1 limited by jointing 5.
An alternate embodiments of side connecting element are shown in FIG. 6, and in connecting element 7 phase in side shown in Fig. 2
Than the alternate embodiments are only with the plate shape piece of junction section 2 between the both sides of jointing 5.Therefore, in Fig. 6
Shown in embodiment defer to principle identical with the embodiment of Fig. 5.
Fig. 7 shows the three-dimensional view of the part of the battery case 10 of part assembly, which passes through side plate in side
12 limit of material, the side plate material stick on bottom sheets 9.
It in the connecting element 1 shown in the upper right corner is corner connection elements 6 in the diagram of Fig. 7, the corner connection elements are with its side
Face 20 abuts side plate material 12.It is side connecting element 7 respectively in the connecting element shown in the upper left corner and the lower right corner, the side connection member
Part is with the corresponding side plate material 12 of its flat 20 contiguous cells case 10 of side.In side in the case where connecting element 7, there is centering
The central section 17 of convex block 4 is correspondingly covered by separation plate 11.Separate plate 11 and side plate material 12 limits monomer in Fig. 7
Lattice 18, battery cell 15 are put into the monomer lattice and can tighten with the jointing 5 of connecting element 1.
Here, separating plate 11 limits separated region 19, which correspondingly constitutes and is installed in battery case 10
Intermediate space between two battery cells 15.
In order to improve mechanical stability, it is bent and is joined on bottom sheets 9 to side plate material C-shaped.
In the present embodiment, separate plate 11 and be embodied as the O shape plate opened downwards, end of the O shape plate on side
Companion flange 13 is bent outwardly at portion.Companion flange 13 is lain on the bottom sheets 9 of battery case 10 with its side.In connection member
In the region of part 1, it is correspondingly provided with notch 21, the notch receives the central section 17 of corresponding connecting element 1.
Not only separate plate 11 but also connecting element 1 in the region of flange 13 or in the region of junction section 2 with
Bottom sheets 9 are welded in the case where forming weld seam 14.Weld seam 14 is shown in Fig. 7,8,9,10 and 11, and the weld seam is corresponding
Jointing 2 on or extend linearly on flange 13.In the present example, the welding is executed by laser welding,
Wherein, the beam for welding laser be directed toward corresponding junction section 2 or flange 13 upper surface and focus on junction section 2 with
In bottom sheets 9 or flange 13 and bottom sheets 9 boundary faces.
In the embodiment of battery case 10 shown in Fig. 7 to 11, using the connecting element according to Fig. 1 to 4, simplified
In manufacturing method, junction section 2 that the connecting element by section can extend in the outer radius of corresponding jointing 5
It is joined in battery case 10.
In the manufacturing method of the simplification, firstly, by least one corner connection elements 6,7 and of at least one side connecting element
At least one cross connection element 8 is placed on bottom sheets 9.Then, at least one separation plate 11 is placed into bottom plate
It is aligned on material 9 and with bottom sheets 9 and relative to corresponding connecting element 1.Then junction section and bottom plate are just carried out
The welding of material 9 and flange 13 and bottom sheets 9.Jointing 2 is along corresponding connection in the case where current connecting element 1
The outer radius of section 5 extends, in this manner, jointing 2 extend into the monomer lattice by side wall 12 and the restriction of partition wall 11
In 18 so that jointing 2 be for continuous laser beam welding it is accessible, taken in the continuous Laser Welding
Cheng Zhong can construct weld seam 14 at flange 13 in a process and construct weld seam 14 at jointing 2.
In contrast to this, it must be placed to first on bottom sheets 9 according to the connecting element 1 of the substitution of Figures 5 and 6, so
It is welded afterwards with bottom sheets 9, then separating plate 11 can just be put into battery case 10, because according to Figures 5 and 6 demarcation plate
Material 11 at least partly covers the junction section 2 of connecting element 1.However, the embodiment more saves space, because of connecting element
The part stretched out on 1 slave jointing 5 does not make monomer lattice 18 become smaller.
Now, battery cell 15 can be presented in manufactured monomer lattice 18, and be tightened with battery case 10.
Then, the battery case 10 assembled completely is mounted in electric vehicle 16 as mounting assembly.In principle, battery case
10 in order to repair or in order to replace and can take out from electric vehicle.Receive the battery cell 15 itself in battery case 10
It can be taken out from battery case 10 again.For this purpose, connection between battery cell 15 and jointing 5 correspondingly releasably structure
It makes.On that point, connecting element 1 explained above constitutes battery cell connecting element.
Reference signs list
1 connecting element/battery cell connecting element (=screw dome connector, screw-jointing seat, spiral shell
Binding place, spiro junction)
2 junction sections (=web)
3 through holes
4 centering convex blocks
5 jointings (=it is threadedly coupled section)
6 corner connection elements
7 side connecting elements
8 cross connection elements
9 bottom sheets
10 battery cases
11 separate plate
12 side plate materials
13 companion flanges
14 weld seams
15 battery cells
16 electric vehicles
17 central sections
18 monomer lattice
19 separated regions
20 sides
21 notches
Claims (15)
1. connecting element (1) of the one kind for the battery cell (15) of electric vehicle (16) to be connect with battery case (10), wherein
The connecting element (1) on the one hand has at least one jointing (5) to connect with the battery cell (15), and
On the other hand, the connecting element is joined on the battery case (10), which is characterized in that the connecting element (1) has extremely
Few one is configured to the junction section (2) of plate shape piece, for being fixedly connected with the battery case (10).
2. connecting element (1) according to claim 1, which is characterized in that the junction section (2) and the jointing
(5) it adjacently constructs.
3. connecting element (1) according to any one of the preceding claims, which is characterized in that junction section (2) structure
Make piece for plate shape, at least extending on the outer profile of the connecting element (1) to section.
4. connecting element (1) according to any one of the preceding claims, which is characterized in that jointing (5) tool
There is the thickness of 0.75mm to 1.75mm, preferably 1mm to 1.5mm, especially 1.5mm.
5. connecting element (1) according to any one of the preceding claims, which is characterized in that the junction section (2) with
The jointing (5) integrally constructs.
6. connecting element (1) according to any one of the preceding claims, which is characterized in that the connecting element is configured to
Hot investment casting component, cold extrusion component or plate members.
7. connecting element (1) according to any one of the preceding claims, which is characterized in that the connecting element is by can
The metal of welding or the alloy that can be welded constitute, is especially made of steel or aluminium alloy.
8. a kind of battery case (10) for electric vehicle, the battery case has bottom sheets (9) and is bonded on the bottom
Connecting element (1) on plate, according to any one of the preceding claims.
9. battery case (10) according to claim 8, which is characterized in that there is the battery case at least one to separate plate
(11), for separating the first battery cell (15) and the second battery cell (15).
10. the battery case according to preceding claims 8 or 9 (10), which is characterized in that the connecting element (1) is engaging
It is preferably joined on the bottom sheets (9) by welding, particularly by laser welding in the region of section (2).
11. the battery case (10) according to any one of preceding claims 9 and 10, which is characterized in that it is described at least one
Separating plate (11) has at least one companion flange (13), and the companion flange is with side identical with the connecting element (1)
Formula is connect with the bottom sheets.
12. the battery case according to any one of preceding claims 8 to 11, which is characterized in that the bottom sheets (9)
The thickness of plate thickness and at least one junction section (2) has the ratio of about 1:1 to about 1:3.
13. the battery case according to any one of preceding claims 8 to 12, which is characterized in that bottom sheets (9) tool
Have in 0.5mm to the thickness between 1mm.
14. one kind is used for the battery case (10) of electric vehicle (16) for manufacturing, in particular according to described in preceding claims 8 to 13
Battery case method, wherein at least one connecting element (1), in particular according to described in any one of preceding claims 1 to 7
Connecting element be arranged on bottom sheets (9) and with the bottom sheets welding, particularly by laser welding.
15. according to the method for claim 14, which is characterized in that the connecting element (1) is being arranged in the bottom
On plate (9) and between the bottom sheets (9) welding, at least one separation plate (11) is arranged in the bottom sheets
(9) on, wherein then, plate (11) and connecting element (2) will be separated one by one and in an identical manner with the bottom sheets
Welding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016114856.3A DE102016114856A1 (en) | 2016-08-10 | 2016-08-10 | Connection element for a battery box and battery assembly and method for its production |
| DE102016114856.3 | 2016-08-10 | ||
| PCT/EP2017/069479 WO2018029050A1 (en) | 2016-08-10 | 2017-08-01 | Connection element for a battery box, and battery box and method for the production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109417137A true CN109417137A (en) | 2019-03-01 |
| CN109417137B CN109417137B (en) | 2022-04-01 |
Family
ID=59579618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780039237.2A Active CN109417137B (en) | 2016-08-10 | 2017-08-01 | Connecting element for a battery box, battery box and method for producing same |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10818897B2 (en) |
| EP (1) | EP3497733B1 (en) |
| JP (1) | JP7069118B2 (en) |
| CN (1) | CN109417137B (en) |
| DE (1) | DE102016114856A1 (en) |
| ES (1) | ES2973380T3 (en) |
| WO (1) | WO2018029050A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388958A (en) * | 2022-03-23 | 2022-04-22 | 宁德时代新能源科技股份有限公司 | Battery box, battery and power consumption device |
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|---|---|---|---|---|
| WO2012168168A1 (en) * | 2011-06-10 | 2012-12-13 | Sb Limotive Company Ltd. | Battery, motor vehicle comprising said battery and method for mounting said battery |
| CN103996808A (en) * | 2013-02-15 | 2014-08-20 | 三菱自动车工业株式会社 | Battery pack for vehicle |
| CN104145352A (en) * | 2012-03-06 | 2014-11-12 | 奥迪股份公司 | Battery having a connecting element comprising multiple individual wires |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3233320B2 (en) * | 1994-01-14 | 2001-11-26 | 本田技研工業株式会社 | Battery box battery fixing device |
| US8049460B2 (en) * | 2007-07-18 | 2011-11-01 | Tesla Motors, Inc. | Voltage dividing vehicle heater system and method |
| WO2012039013A1 (en) | 2010-09-20 | 2012-03-29 | トヨタ自動車株式会社 | Assembly pallet for secondary battery and method for producing secondary battery |
| KR101948180B1 (en) * | 2015-04-30 | 2019-02-14 | 주식회사 엘지화학 | Battery pack and method for manufacturing the same |
| DE102015111749A1 (en) * | 2015-07-20 | 2017-01-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery device and method |
| CN204857812U (en) | 2015-08-06 | 2015-12-09 | 简式国际汽车设计（北京）有限公司 | Electronic passenger car power battery case structure |
-
2016
- 2016-08-10 DE DE102016114856.3A patent/DE102016114856A1/en active Pending
-
2017
- 2017-08-01 JP JP2019507270A patent/JP7069118B2/en active Active
- 2017-08-01 US US16/316,966 patent/US10818897B2/en active Active
- 2017-08-01 WO PCT/EP2017/069479 patent/WO2018029050A1/en unknown
- 2017-08-01 EP EP17751065.8A patent/EP3497733B1/en active Active
- 2017-08-01 ES ES17751065T patent/ES2973380T3/en active Active
- 2017-08-01 CN CN201780039237.2A patent/CN109417137B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012168168A1 (en) * | 2011-06-10 | 2012-12-13 | Sb Limotive Company Ltd. | Battery, motor vehicle comprising said battery and method for mounting said battery |
| CN104145352A (en) * | 2012-03-06 | 2014-11-12 | 奥迪股份公司 | Battery having a connecting element comprising multiple individual wires |
| CN103996808A (en) * | 2013-02-15 | 2014-08-20 | 三菱自动车工业株式会社 | Battery pack for vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388958A (en) * | 2022-03-23 | 2022-04-22 | 宁德时代新能源科技股份有限公司 | Battery box, battery and power consumption device |
| CN114388958B (en) * | 2022-03-23 | 2022-07-05 | 宁德时代新能源科技股份有限公司 | Battery box, battery and power consumption device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019526891A (en) | 2019-09-19 |
| WO2018029050A1 (en) | 2018-02-15 |
| CN109417137B (en) | 2022-04-01 |
| US10818897B2 (en) | 2020-10-27 |
| ES2973380T3 (en) | 2024-06-19 |
| EP3497733B1 (en) | 2024-02-14 |
| JP7069118B2 (en) | 2022-05-17 |
| US20190305275A1 (en) | 2019-10-03 |
| DE102016114856A8 (en) | 2018-06-28 |
| DE102016114856A1 (en) | 2018-02-15 |
| EP3497733A1 (en) | 2019-06-19 |
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